Charles espensciiied



l(No Model.)

C. ESPBNSGHIED. GONVB'YERPOR PLOUR, wf

Patented June 25,1889.

jNo. 405,994.

@mnzen o UNITED STATES PATENT OFFICE-.

CHARLES nsPnNsciiiED, or HAs'riNcs, .iiixxnso'iuu Assnfxon .ToiiiivisELF AND oT'ijo J.' A. nonnmn, oifsAnr. PLACE.

i A CoNvEYER'i-'R FLoUR, etc.

SPECIFICATION forming part of Letters Patent No. 405,994, dated June 25,1889. Application filed February 28, 1889. Serial No'. $01,516. (Nomodel.)

ToV all whom, it may coli/cern,.-

Be it known that I, CHARLES EsPENsoHIEm;

of Hastings, in the county of Dakota and State of Minnesota, haveinvented ce1-'tain new and 5 useful Improvements in Conveyers for Flour,

Middlings, dac.; and I do hereby declare that the following is afull,clear, and exact descripo machines 'for dressing flour or meal; audithas especia-l reference to the means for conveying or dliveringthematerial from, the machine without lsubjeetiiig it to any attrition orrubbing during the. conveyance there- 2 5 of. 1n the ordinary forms ofsuch machines eoiiveyers are employed which force the material out of.the machine by pushing or dragging it vthrough the delivery trunks andlthe:

yblades or buckets grind the material some- 3`o^what, rendering itdusty, and as dust is injurious to the product it must be removed,`

this removal involving additional'treatment f 'and vlossof material. Toohviate this difficulty I employ an endless coneaved *carrier- 35-trough, which receives the material and carries it directly from themachine without any attrition thereof, so thalt the iiiost delicategrades of material can be handled without deterioration; and myinvention consists in 4o the employmentof an endless concaveilexih'lean'd nou-sectional conveyer-trough, and inl certain' noveldetails of parts, whereby the trough is coneaved and operated, all ofwhich are hereinafter clearly set forth.

.Referring to the drawings by letter, A designates the frame of aboltiiig-reel, purifier,

or similar machine for dressing ground grain,

xhaving. two parallel longitudinal delivery- Y trunks B Il. at bottoni,above which are the 5ochute-boards C and the adjustable shuntboards D D,by'which the material falling upon and from boardsCl maybel directedinto veithertrunk l, as usual.`

.shafts in the ends of trunks B, the peripheries of which are concavcd,as shown, or the drums may be provided with peripheral vflanges g attheir edges.

H .H designate endless conveyer-belts-one in each-compartment13g-mounted on drums (i, as -indicated. These belts form theendless-carrier trunks, and are preferably made of canvas, but may be ofother flexible inaterial haring a close texture, and are .not scctional,beiiig-rcxiblc enough t0 turn round the drums. The concave peripheriesof the drums keep the belt `from slipping laterally therefrom, and atthe Sametime perform "a more important office, which is to upturn theedges of the belt, so that itvbecomes concave also, or presents asemi-tubular appearance in cross-section, and its upper portionconstitutes'an end-less non-sectional moving trunk or receiver, as isevident. The flanges g would serve to turn up' the sides of thecnd-`less belt also. The endless belts run parallel within compartments vBand below shunt-` boards D, so that material falling -from said boardsis received thercoi'i, and when motion is imparted to the belts bybelting on pulley e oroi'hcr suitable means the material will be carriedout of the machine. `v

I I designate Scrapers orbrushes placed at the lower side of drums G, atthe delivery end ofthe machine, and convexed so as to readily brush thebelt as it revolves and clear material therefrom.

There long belts are employed, I use V.con-

cavc supporting-rollers J, mounted in suitable bearings atpropenintervals apart below the'reeeiving portion of the belt, and acon-Vex pulley K, mounted in,adjustable bearings, may be employed to tightenthe carrier; or ithe shaftF might be made adjustable forl this nurnose.Bv the use of these concaved IOO rollers the material is kept fromfailingvoi into the trunks B, and is carried directly from the machine just asv it rstwfalls upon the trunk. Obviously, therefore5there is nogrinding of the material, and it iS delivered,

from the machine clean and pure.

What I therefore claim as new is- Zonta-1 shafts at the ends of saidtrunks 13, the endless flexible belt'H, the supportingrollers J.L'eonvex tightener-pulley K, and brush '1,A all substantially asdescribed.

In testimony that I claim the foregoing as my own I affix I n'ysignature in presence. of two witnesses.

CHAS. ESPENSCHIED. Witnesses:

FRED. S. GARDEN

